Interactions and comprehensive effect of indoor environmental quality factors on occupant satisfaction

Tang, Hao; Ding, Yong; Singer, Brett C.

doi:10.1016/j.buildenv.2019.106462

Cited by 67 publications

(36 citation statements)

References 47 publications

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“…It shows an agreement with the trend of isoline which is a parabola opening downward. The average overall satisfactions predicted by using our new quantitative measure are relatively most in accordance with that obtained by Tang et al 55 As mentioned above, apart from the main effect of multiple indoor environmental factors on human perceptions, Tang considered the crossed and interaction effects of indoor environmental factors on occupant satisfaction, which is reflected in their mathematical model. These effects were also taken into consideration in our quantitation, and it was probably the reason leading to this agreement.…”

Section: Resultssupporting

confidence: 86%

A new quantitative measure of occupants’ overall satisfaction for indoor physical environmental quality

Sun

2021

Indoor Air

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Previous studies have developed plenty of mathematical models for assessing indoor environment quality. Literature reviews that most of them presented a mean value of perception of a population and ignored the interaction effects of multiple environmental factors on occupants’ perceptions. In this regard, the aim of our paper is to develop a comprehensive indoor physical environment quality (IPEQ) index which could present a whole picture of perception of a population by taking the combined effects (i.e., main, crossed and interaction effects) into consideration. The hypothesis and methodology of quantitation were firstly proposed according to Probability Theory. Our quantitation was performed based on the subjective perception votes that collected from 216 experimental conditions in a controlled laboratory. Three 3‐input 7‐output Artificial Neural Network models were subsequently developed for predicting probability mass functions (PMFs) of 7‐point sensation votes under the combined effects of temperature, illuminance, and sound level. Thereafter, the PMFs of 3‐point satisfaction votes were expressed and calculated by using Law of Total Probability. Finally, a comprehensive IPEQ index‐Predicted Probability Overall Dissatisfied (PPOD) index, which provides an estimate of how many occupants in a space would feel dissatisfied with the overall physical environment, was developed. The predicted expected value of overall satisfaction distribution (average overall satisfaction) was validated to be roughly in accordance with previous studies and more reasonable when at least one kind of environmental factor was far away from expectation. The new quantitative measure also indicated that the minimum PPOD is 17.55% (air temperature = 24.3°C, illuminance = 910Lx, sound level = 35 dB) within common ranges of environmental parameters. It was also discussed that our new quantitative measure could provide quick and direct suggestions for controlling or designing the indoor environment.

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Section: Resultssupporting

confidence: 86%

A new quantitative measure of occupants’ overall satisfaction for indoor physical environmental quality

Sun

2021

Indoor Air

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“…Nonetheless, several European countries have had to overcome the absence of specific legislation, or legislative acts already developed, due to generic definitions of the characteristics of air quality. For instance, in closed workplaces, such as closed offices where employees have individual working areas that are distinctly divided-either by walls, cubicles, or panels-it is necessary to ensure that workers have healthy air in sufficient quantity, which is also obtained with ventilation systems [10]. It is necessary for updated laws and regulations to be adopted to improve the indoor air quality.…”

Section: Introductionmentioning

confidence: 99%

Indoor Air Quality: A Focus on the European Legislation and State-of-the-Art Research in Italy

Settimo¹,

Manigrasso

Avino

2020

Atmosphere

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The World Health Organization (WHO) has always stressed the importance of indoor air quality (IAQ) and the potential danger of pollutants emitted from indoor sources; thus, it has become one of the main determinants for health. In recent years, reference documents and guidelines have been produced on many pollutants in order to: i) decrease their impact on human health (as well as the number of pollutants present in indoor environments), and ii) regulate the relevant levels of chemicals that can be emitted from the various materials. The aim of this paper is to discuss and compare the different legislations present in the European Union (EU). Furthermore, a focus of this paper will be dedicated at Italian legislation, where there is currently no specific reference to IAQ. Although initiatives in the pre-regulatory sector have multiplied, a comprehensive and integrated policy on the issue is lacking. Pending framework law for indoor air quality, which takes into account WHO indications, the National Study Group (GdS) on Indoor Air Pollution by the Italian Institute of Health (IIS) is committed to providing shared technical-scientific documents in order to allow actions harmonized at a national level. An outlook of the main Italian papers published during these last five years will be reported and discussed.

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“…[5,[18][19][20][21]) or combined IEQ aspects on productivity (e.g. [22][23][24][25][26][27]). The IEQ has become an interconnected, multidisciplinary, and complicated issue as the design of new buildings becomes more sophisticated with multiple office layouts, advanced sensing technologies, and with both centralized and decentralized automation systems.…”

Section: Introductionmentioning

confidence: 99%

The impacts of building characteristics, social psychological and cultural factors on indoor environment quality productivity belief

Chen

Yılmaz

Pisello

et al. 2020

Building and Environment

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Indoor environmental quality (IEQ) plays a key role in determining occupants' productivity at work; however, the analyses in the interconnected factors among building physical, attitudinal, social and demographic components in one study are lacking. To link this research gap, this study investigates these interconnected factors' influence on occupants' IEQ-productivity belief, defined as personal subjective evaluation on the linkage between the impacts of five IEQ aspects (the qualities of indoor temperature, air, natural and electric lighting and acoustics) and productivity.A cross-sectional survey data is collected in university offices from six countries (Brazil, Italy, Poland, Switzerland, Taiwan and the U.S.). Results of multiple linear regression model indicate that IEQ satisfaction is the strongest positive predictor of the IEQ-productivity belief; this relationship is stronger in private offices. Country of residence is the second primary predictor.Several attitudinal-behavioral factors, including thermal comfort, perceived ease of controlling indoor environmental features, attitudes toward sharing controls, and are all positively associated with IEQ-productivity belief. Interestingly, the level of control accessibility to light switches has the strongest impact on as opposed to other controls. On the other hand, group norms and conformity intention were not significant predictors. Regarding demographics, men are more likely to perceive the IEQs has positive impacts on their productivity than women without considering other variables in the regression model; on the contrary, women are more likely to consider all IEQs as having positive impacts on productivity than men, after considering other variables. Our findings provide suggestions in helping prioritize wellness in workplaces.

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Interactions and comprehensive effect of indoor environmental quality factors on occupant satisfaction

Cited by 67 publications

References 47 publications

A new quantitative measure of occupants’ overall satisfaction for indoor physical environmental quality

A new quantitative measure of occupants’ overall satisfaction for indoor physical environmental quality

Indoor Air Quality: A Focus on the European Legislation and State-of-the-Art Research in Italy

The impacts of building characteristics, social psychological and cultural factors on indoor environment quality productivity belief

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